On-base plus slugging

In baseball statistics, on-base plus slugging (denoted by OPS) is defined by the sum of on base percentage (OBP) and slugging percentage (SLG).

This statistic combines both the ability of a player to get on-base (OBP) and the player's power-hitting ability (SLG). It is very popular in measuring the offensive worth of a player since it is easy to calculate and has a strong positive correlation, at the team level, with runs per game.

An OPS of .800 or higher puts the player in the upper echelon of offensive ability. Barry Bonds has a career OPS of 1.054 as of the start of the 2005 MLB season.